BA 988673

Frequently Asked Questions

Q: What are the exact dimensions of each brush in the BA 988673 set?
A: Each brush measures 1.3 inches in length, 1.24 inches in width, and 0.628 inches in thickness. The set includes 4 brushes with these identical dimensions, allowing for replacement of complete brush assemblies in traction or hydraulic motors.

Q: Will BA 988673 brushes fit Baker lift trucks other than my current model?
A: BA 988673 is the OEM part number for Baker electric lift truck brush assemblies. Verify your lift truck model and motor type (traction or hydraulic) before ordering. Dimension compatibility is the primary fitment criterion, so confirm the 1.3 x 1.24 x 0.628 inch specification matches your motor brush cavity.

Q: What material are these brushes made from and why does it matter?
A: BA 988673 brushes are carbon-graphite composition. Carbon-graphite provides good electrical conductivity, moderate wear resistance, and reliable commutator contact in DC motor applications. This material is standard for lift truck traction and hydraulic motor brushes where consistent power transfer and durability are required.

Q: How often should BA 988673 brushes be replaced?
A: Brush life depends on motor run time, load cycles, and commutator condition. Inspect brushes during regular maintenance for wear and arcing. Replace the complete set when any brush wears below 0.25 inches in length or if you observe pitting on the commutator. Operating with severely worn brushes increases motor temperature and reduces efficiency.

Q: Do I need to replace all 4 brushes at once or can I replace them individually?
A: Replace all 4 brushes as a complete set to ensure balanced brush wear and uniform electrical contact. Mixing old and new brushes creates uneven pressure on the commutator, leading to accelerated wear and potential motor damage. BA 988673 is sold as a matched 4-brush set for this reason.